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https://issues.apache.org/jira/browse/KAFKA-10339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171670#comment-17171670
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Ning Zhang commented on KAFKA-10339:
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it is true that SinkTaskContext.offsets() has been taken covered. I will test
this updated idea out in my local and the extra step is to create a "fake"
consumer group on target cluster.
> MirrorMaker2 Exactly-once Semantics
> -----------------------------------
>
> Key: KAFKA-10339
> URL: https://issues.apache.org/jira/browse/KAFKA-10339
> Project: Kafka
> Issue Type: New Feature
> Components: KafkaConnect
> Reporter: Ning Zhang
> Assignee: Ning Zhang
> Priority: Major
> Labels: needs-kip
>
> MirrorMaker2 is currently implemented on Kafka Connect Framework, more
> specifically the Source Connector / Task, which do not provide exactly-once
> semantics (EOS) out-of-the-box, as discussed in
> https://github.com/confluentinc/kafka-connect-jdbc/issues/461,
> https://github.com/apache/kafka/pull/5553,
> https://issues.apache.org/jira/browse/KAFKA-6080 and
> https://issues.apache.org/jira/browse/KAFKA-3821. Therefore MirrorMaker2
> currently does not provide EOS.
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